Extremely tired - anyone else?

I know we're supposed to be tired around now, but in the last week or two I've been sleeping more than I've been awake. This is my last week off before I start my new job, and I literally slept 3 days in a row. I forgot about the laundry, woke up to go to the bathroom and to eat twice, and that was it.

My dad's birthday party was this past weekend and my sister and I did most of the work, so I know it drained me a little (there were like 50 people), but again - yesterday I went to bed at 7pm and I've been in bed all day! (it's almost 7pm again!!) We're supposed to move soon, and nothing's been packed. I also need to paint the new house (was supposed to happen today) but can't seem to get my butt out of bed!

Is there anyone else sleeping this much, or should I see my doctor about it? I read in the baby book that this is a period of rapid growth for the baby, would that make me exhausted?